But neither denial or confirmation on a 85/Art prime and other lenses. That's a shame.

Agreed. I'm seriously in the market for an 85mm. I want the portrait capabilities of the 85/1.2L, but the AF of the 85/1.8. If the 85 Art can land somewhere in the middle, it could save me having to buy both.

Interesting discussions with personal preference perhaps a factor. I think the push/pull design has made way for the rotating ring mostly because of recent advances in autofocus. And just maybe the rotating ring may cost less to make??

I have a strong preference for push-pull (but only in a lens like the 100-400, I would find it undesirable for a shorter lens) for two sports related reasons.

First is for getting around lens restrictions at many sports venues. It's often based on the physical length of the lens, not the focal length. At 7.4" collapsed and sans hood, it's really quite petite for a lens capable of super telephoto focal lengths. So at a place with an 8" restriction, it's the only way to get out to 400mm without TCs. The 400DO clears a 10" restriction, and you could probably get away with the 400/5.6 as well (it's 10.1").

Second is just the amazing speed you can go from 100-400mm. At 100mm you can see between 1/3 to 1/2 of an american football field from the stands, depending on where you're sitting; which is great for scanning the field for action, then with a flick of your wrist you're at 400mm with just a couple players in your FOV. Try that with any of the 70-200s and a 2xTC. You can probably do it in only about twice the amount of time if your hand is positioned just right on the zoom ring where you can do the whole range without repositioning your hand, otherwise you're probably looking at 5-10x as long.

I have sold my 5DMkII and bought a second 5DMkIII. No regrets. Now both of my cameras are the same model so no thoughts in choosing.

In addition when you shoot with both cameras the controls are the same and this is a plus.

I would suggest to upgrade if you can afford it...

I have been thinking about doing that for a while, but there are four reasons I haven't:

#1, I won't get much out of it (Yes, I realize the prices will only keep falling, but losing $1,000 - 1,500 sucks)

#2, I have the EF-S screen in it and that works great with my fast lenses. The 5DIII viewfinder is a grainy, blurry, piece of junk in comparison and is all but useless for manual focus.(I also realize that there are 3rd party solutions to this problem, but I'd rather not fool with them)

#3 I find myself shooting fewer events (and thus less need for two bodies with prime lenses on each one) and focusing more on shooting with a single body, so the 5DII has become more of a true back up body.

#4 I have spent way too much money on camera gear over the last few years and really need to get back to taking car of the house, cars, and other things like that

All your reasons are quite personal so quite reasonable too.The only reservation I would have is about #1 where you said it yourself: "the prices will only keep falling".By doing this exchange I saved about 40% of the price of 5D3 so I have no complaints myself

Yes, they are very personal and probably don't apply to others, but I thought I'd share them in case any of them do. Also, my 5DII is pretty beat up, so I think I'd be lucky to get a $1k for it, and after reading about the latest 1DX firmware, I think that's what I'd really like. Besides the obvious upgrades over the 5DIII, I'm so jealous of the new features, especially exposure compensation in Manual and being able to set a shutter speed over 1/250s for Auto ISO. Why anyone at Canon thought 1/250s was reasonable, I'll never understand.

Those and spot AE linked to AF point make me lust for a 1DX. Still love my 5D3 though, and I can't really justify the additional expense right now.

That's very nice, how much is the sky held back? If it's not, it looks like it is a bit. But it looks natural, so nice job. Not sure I would have put the sun in the center like that for this shot, but I have to admit it does work this way anyway. I need to get one of these lenses. I don't like the idea of the corner stretching projection (I'd prefer 16 to 20mm), but there's really no other wide angle that comes close in IQ, that I can justify blowing the money on right now. Anyhoo...again bravo...and my favorite part is the snow and trees in the bottom half.

Thank you. I almost always go for the natural look, even though the facebook folks seem to love the gaudy HDR ones. This is a 7 shot bracket, enfused, no other processing. The wind up on this tower was crazy too, so I know sharpness suffered because of that. This was just a quick test of the lens, since winter in Wisconsin you take any sunshine you can get. Once it warms up I'll get some real shots.